List questions from convex-geometry

Published on 29 Mar 2026 - 6:02

125

Views

Strictly convex function proof

Published on 18 Apr 2022 - 8:28

137

Views

Show that the image of the given function is convex

Published on 18 Apr 2022 - 21:40

90

Views

Separation of polyhedra via Farkas' lemma

Published on 29 Mar 2026 - 6:07

29

Views

Probability of convexity of a polytope in $\mathbb{R}^2$ and possibly $\mathbb{R}^3$?

Published on 21 Apr 2022 - 20:13

102

Views

Support cones and linear functionals

Published on 27 Mar 2026 - 21:23

83

Views

Concavity of the function $|f|$ , while $f$ is concave

Published on 23 Apr 2022 - 8:59

80

Views

Maximize the trace of the convariance of a bounded random vector

Published on 28 Apr 2022 - 6:16

40

Views

Some doubts regarding determinant lower bound of linear discrepancy

Published on 30 Apr 2022 - 9:41

66

Views

What's the combination of vectors with all coeffiencts between 0 to 1？

Published on 29 Mar 2026 - 14:02

52

Views

When the convex combinations of two vectors are all non-negative?

Published on 03 May 2022 - 9:18

270

Views

Minimal polytope enclosing a sphere

Published on 29 Mar 2026 - 10:46

232

Views

If a polyhedron's faces and vertex figures are convex, is the polyhedron convex?

Published on 29 Mar 2026 - 6:07

19

Views

A (sub)neighborhood $S'$ of a set $X^$ such that the line segment connecting any point in $S'$ and its projection to $X^$ is contained in $S'$.

Published on 07 May 2022 - 12:28

40

Views

Sufficient condition for convexity involving an average of slopes

Published on 25 Mar 2026 - 23:37

List Question

A question regarding the proof of Lévy–Steinitz theorem

Strictly convex function proof

Show that the image of the given function is convex

Separation of polyhedra via Farkas' lemma

Probability of convexity of a polytope in $\mathbb{R}^2$ and possibly $\mathbb{R}^3$?

Support cones and linear functionals

Concavity of the function $|f|$ , while $f$ is concave

Maximize the trace of the convariance of a bounded random vector

Some doubts regarding determinant lower bound of linear discrepancy

What's the combination of vectors with all coeffiencts between 0 to 1？

When the convex combinations of two vectors are all non-negative?

Minimal polytope enclosing a sphere

If a polyhedron's faces and vertex figures are convex, is the polyhedron convex?

A (sub)neighborhood $S'$ of a set $X^$ such that the line segment connecting any point in $S'$ and its projection to $X^$ is contained in $S'$.

Sufficient condition for convexity involving an average of slopes

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